Finding the Fourth Proportional to 207,257.76, 310,853.70 and 74,113.20
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Solution
The fourth proportional to 207,257.76, 310,853.70 and 74,113.20 is: 111,158.02
Step by Step Solution
- Step 1: Write the proportion equation
207,257.76 : 310,853.70 = 74,113.20 : x - Step 2: Convert to fraction form
207,257.76/310,853.70 = 74,113.20/x - Step 3: Cross multiply
207,257.76x = 310,853.70 × 74,113.20 - Step 4: Simplify right side
207,257.76x = 23,038,362,438.84 - Step 5: Solve for x
x = 23,038,362,438.84/207,257.76 - Step 6: Final answer
x = 111,158.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.